From previous studies, it is concluded that 15% of people support stricter gun laws. A researcher claims it has decreased and decides to survey 100 adults. Test the researcher's claim at the α=0.05 significance level.  After surveying 100 adult Americans, the researcher finds that 42 people support stricter gun laws. Compute the test statistic. Round to two decimal places. z=  What is the pp -value? Round to 4 decimals. p= Make a decision based on α=0.05 significance level. Reject the null hypothesis. Do not reject the null hypothesis. What is the conclusion? There is sufficient evidence to support the claim that 15% of people support stricter gun laws has decreased. There is not sufficient evidence to support the claim that 15% of people support stricter gun laws has decreased

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.